Alert Notice 728: V510 Ori coverage needed for HST observations

February 3, 2021

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Further to AAVSO Alert Notice 725, Dr. Fred Walter (Stony Brook University) informs us that the T Tau star V510 Ori, one of the targets in his campaign on Northern T Tauri stars, will be re-observed with the Hubble Space Telescope on:

12 February 2021 06:03 - 13:28 UT

Observers are requested to resume observations of this star and continue obtaining a few observations per night from now through February 15. It is important to use standard broadband filters. Please concentrate on B, V, and Ic; Rc and U are also useful. Visual observations are welcome.

V510 Ori has a range of 13.5 - 15.3 V, with a mean magnitude (not midpoint) of 14.3 V.

Coordinates (2000.0):  R.A. 05 39 39.83  Dec. -02 31 21.9  (from VSX entry for V510 Ori)

Charts with comparison stars for V510 Ori may be created using the AAVSO Variable Star Plotter (VSP).

Submit observations: Please submit observations to the AAVSO International Database using the name V510 ORI.

This AAVSO Alert Notice was compiled by Elizabeth O. Waagen.


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